Mold for tire-fillers.



H. I. HARDIE.

MOLD FOR TIRE FILLERS.

APPLICATION FILED MAR. 9, 19l4.

Lmm'm, Patented May11,1915.

' rim designed to extend into the thepla ne denoted by the line Y-Y Fig. 1.-

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norm ron TIBE-FILLEBS.

menses.

- Specification of Letters Patent.

Patented May 11, 1915.

Application filed March 9, 1914. Serial'No. 822%;488.

To cZZ whom it may concern Be it known that I, Hnnnnnr learns the city of VVinmpeg, 1n the vented certain new and useful Improveinents in Molds for Tire-Fillers, of which the following is the specification.

The invention relates to a mold especially designed for molding a resilient tire filler and the object of the invention is to provide an inexpensive, easily handled, eflicient and durable mold whereby one can mold a tire filler in-the form of a continuous ring having a continuous groove or channel therein inset in the inner side of the filler.

A further ohject of the invention is to provide a mold which can be readily cooled during the molding operation.

With the above objects vin view the invention consists essentiallyg-in a mold formed from two complementarywater jacketed seoticns designed to; be bolted together and forming a continuous molding chamber 'ciroular in cross section and a plate insertible between the mold sections and provided with an enlarged edge in the nature of a molding chamber, the parts being arranged and com structed as hereinafter more particularly described and later pointed out in the appended claim.

Figure 1 is a plan view of the complete mold part being broken. away to expose "construction. Fig. 2. is aside view of the same. Fig. 3 is an enlarged. detailed transverse sectional-view through the; mold, the section being taken in the plane denoted by the line X-X" Fig. 1. Fig. l is an en'- larged detailed transverse sectional view the mold, the section being taken in Fig. 5 is an enlarged detailed transverse sectional. view through the filler molded by the mold.

r In the drawing like characters of reference indicate corresponding parts in each figure. I

1 represents the-inold which is formed from two complementary sections 2 and 3, each section being more or less in the form of a continuous circular ring more or less semicircular in cross section so that, w en the two. sections are brought togethc circular molding chambe formed. 1 wate jackets o sections are provided w:

ing releaisahly and 6 having sultable inlet and outlet open gether by releasablebolts 11 passing through the lugs. v

12 is .a filling opening located in the top section of the mold, this opening enteringthe chamber.

13 is a flat circular plate having the outer edge thereof enlarged to form a rim 14, the said rim being preferably circular in cross section. The body'of the plate is designed to clamp in between the inner edges of the mold sections when the mold is set up, its position being best shown in Figs. 3 and 4: of the drawing. Upon examining these figures it will be noticed that the rim is actually set in the molding chamber, thereibeing a portion 13 of the plate body overhanging the inner edges of the mold sections.

In utilizing the mold for molding a resilient filler the mold is set up as shown in the: drawings and the filler in the nature of a. heavy liquid is poured in'to the mold through the filling opening 12. During the operation the mold can be cooled with running water, admitted to the water jackets through the opening 7 and discharged from the same through "the openings .8. When the filler has set the bolts are undone and the sectionsgare removed from the filler; At this time the rir'n of the plate is still in the filler. It can be readily removed by springing back the containing edges of the resilient filler sufficiently far to allow of the complete withdrawal of the plate. The filler 15 so molded will be in the nature of a continuous ring having a circular. cross section as shown in Fig. 5 of the drawing and provided on the inner side with an inset continuous groove or channel 16 approached from the inner side of the filler through anarrow' slit 17. The groove is formed by the rim while the slit is formed by the overhaxiging portion 13 of the plate body. in the mo What'l claim as my invention ice-- A mold for resilient tire fillers comprise tions providing between them a continuous CllCl molding chamber having a circular cross section of the dimensions oi the filler to be molded, one of said seciionsbeing connected complementary sec-' I nseam 5. inner edge thereof inset in from the inner side of the mold wall and provided on the inset side with a continuous riin of circular gross section and relatively small in respect to the cross section of the mold, as and for L the purpose specified.. Signed at WVinnipe Mary, 1913.

g, this 2nd day of Jan- HERBERT JAMES BARBIE; In the presence oi G. S. ROXBURGH,

L. GOULD. 

